Asteroids

2019YU3 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.639

Aphelion (Q)

2.295

Eccentricity (e)

0.565

Inclination (i)

5.1

deg

Orbit period (P)

648.7

Earth MOID

0.02107

U parameter

1.2

Next Earth close approach

Date

2035-12-12

Nominal distance (from Earth center)

0.18585

27802351

Maximum Brightness

22.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.6

mag

Diameter

80 - 180*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-12-27

Observatory

Pan-STARRS 2, Haleakala

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.466609

1-sigma variation

4.911E-8

Unit

Eccentricity (e)

Value

0.564550

1-sigma variation

1.603E-7

Unit

Inclination (i)

Value

5.1431

1-sigma variation

1.562E-5

Unit

Long. of Ascending Node (Ω)

Value

107.7818

1-sigma variation

2.709E-5

Unit

Arg. of Perihelion (ω)

Value

257.5947

1-sigma variation

3.270E-5

Unit

Mean Anomaly (M)

Value

148.72729

1-sigma variation

0.00006

Unit

Perihelion distance

Value

0.638636

1-sigma variation

Unit

Aphelion distance

Value

2.294583

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.153038

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.126702

1-sigma variation

Unit

MOID

Value

0.021066

1-sigma variation

Unit

Orbit Period

Value

648.7392

1-sigma variation

Unit

U parameter

Value

1.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.41152E-15	-6.89762E-15	3.91681E-13	4.13394E-13	5.42268E-13	-2.82741E-12
e	-6.89762E-15	2.56879E-14	-1.40066E-12	-1.27656E-12	-2.76439E-12	8.61716E-12
i	3.91681E-13	-1.40066E-12	2.44087E-10	5.80803E-11	1.54722E-10	-4.76967E-10
Ω	4.13394E-13	-1.27656E-12	5.80803E-11	7.33776E-10	-5.53184E-10	-4.80323E-10
ω	5.42268E-13	-2.76439E-12	1.54722E-10	-5.53184E-10	1.06960E-9	-7.80640E-10
M	-2.82741E-12	8.61716E-12	-4.76967E-10	-4.80323E-10	-7.80640E-10	3.38720E-9

Date of computation: 2025-09-10 00:30 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

22.608

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

80 - 180*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

530

Unit

Source

[1]

Unobserved

Value

1609

Unit

Source

[1]

Normalized RMS of residuals

Value

0.663393

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-12-27.598676

Unit

Source

[2]

Last Observation

Value

2021-06-09.582783

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

73 (2)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2019YU3 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
VENUS	1950-05-23 16:47	2.3	0.0333803	0.0333274	0.0000176
EARTH	1971-12-13 19:45	1.6	0.1673761	0.1673420	0.0000114
EARTH	1973-06-15 03:40	< 1 min	0.1911268	0.1910996	0.0000091
VENUS	1982-07-20 23:00	< 1 min	0.0372229	0.0372209	0.0000007
EARTH	1987-12-21 19:09	< 1 min	0.0763944	0.0763918	0.0000009
EARTH	1989-06-19 11:32	< 1 min	0.1102308	0.1102286	0.0000007
MARS	1998-11-08 23:50	< 1 min	0.0326540	0.0326490	0.0000017
EARTH	2003-12-21 21:26	< 1 min	0.0772049	0.0771943	0.0000035
EARTH	2005-06-19 08:17	< 1 min	0.1136627	0.1136502	0.0000042
EARTH	2019-12-18 02:47	< 1 min	0.1289196	0.1289191	0.0000002
EARTH	2021-06-16 13:51	< 1 min	0.1694751	0.1694736	0.0000005
VENUS	2030-07-18 06:24	< 1 min	0.0374130	0.0374095	0.0000012
MARS	2030-11-01 14:14	< 1 min	0.0363980	0.0363932	0.0000016
EARTH	2035-12-12 00:40	1.2	0.1858472	0.1858257	0.0000072
VENUS	2046-07-14 23:17	2.5	0.0357491	0.0357457	0.0000011
EARTH	2092-07-07 03:00	9.1	0.1499649	0.1497700	0.0000650
MARS	2094-10-13 16:41	2.7	0.0335877	0.0335191	0.0000229
EARTH	2107-01-04 13:35	< 1 min	0.1510873	0.1510705	0.0000056
EARTH	2108-07-04 02:19	1.6	0.1042904	0.1042457	0.0000149
EARTH	2123-01-06 08:14	4.7	0.1861688	0.1859492	0.0000732
EARTH	2124-07-08 11:04	10.4	0.1502565	0.1500300	0.0000755

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
54.57511987	352.04555345	0.02103640	MINIMUM
303.26015191	171.73932546	0.02178035	MINIMUM
358.31936437	261.36337672	0.36990183	SADDLE
179.52397946	82.44588544	1.30365512	SADDLE
357.99315020	80.73302721	1.63484806	SADDLE
179.36233368	262.35860226	3.29392277	MAXIMUM

Download:

MOID Plots

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